I am using the FPGA(x7a200t) to config W5500, the target is to using w5500 send UDP packet.
now I am using the Microblaze to config W5500, at present, i have successfully config the mac, local ip, subnet, gateway. And polling the PHYCFGR untill it shows the link status is “LINK UP”.(it proves the SPI interface works well).and then I set the 16 RX\TX memory. The General Register is set done.(keep other reg default).
the flow above is show as below
int W5500Init()
{
u8 v = 0;
// hardware reset
XGpio_DiscreteWrite(&gpioInst, 1, ~RST_N_W5500_PIN); // rst_n is active low
sleep(1); // wait for 1ms (should greater than 500us as the datasheet show)
XGpio_DiscreteWrite(&gpioInst, 1, RST_N_W5500_PIN);
// software reset
W5500WriteByte(MR_ADDR, GENERAL_REG, 0x80); // reset the reg
// config the w5500.
W5500Transfer(SHAR_ADDR, GENERAL_REG, RWB_W, OM_VDM, mac, sizeof(mac)); // {0x00, 0x08, 0xdc, 0x01, 0x02, 0x03};
W5500Transfer(SUBR_ADDR, GENERAL_REG, RWB_W, OM_VDM, subnet, sizeof(subnet)); //{192, 168, 1, 30};
W5500Transfer(GAR_ADDR, GENERAL_REG, RWB_W, OM_VDM, gateway, sizeof(gateway)); // {255, 255, 255, 0};
W5500Transfer(SIPR_ADDR, GENERAL_REG, RWB_W, OM_VDM, lip, sizeof(lip)); //{192, 168, 1, 1};
sleep(1); // sleep 1 second
v = W5500ReadByte(PHYCFGR_ADDR, GENERAL_REG); // polling phycfgr
while ((v & 0x01) == 0) // it will break the loop if link up
{
v = W5500ReadByte(PHYCFGR_ADDR, GENERAL_REG); // phycfgr
}
// Init memory, i want to use socket 0 only
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET1_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET1_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET2_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET2_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET3_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET3_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET4_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET4_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET5_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET5_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET6_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET6_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET7_REG, 0); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET7_REG, 0); // tx buf size
W5500WriteByte(SN_RXBUF_SIZE_ADDR, SOCKET0_REG, 16); // rx buf size
W5500WriteByte(SN_TXBUF_SIZE_ADDR, SOCKET0_REG, 16); // tx buf size
return 0;
}
I want only use the socket0 , here is the code
void W5500ConfigSocket(u8 socketBsb)
{
u8 v = 0;
v = W5500ReadByte(SN_SR_ADDR, socketBsb); // v == 0x75 weird value
W5500WriteByte(SN_CR_ADDR, socketBsb, CLOSE); // set CR to close
v = W5500ReadByte(SN_CR_ADDR, socketBsb);
while (v != 0) // polling the CR untill it return to zeros. here it stucks
{
v = W5500ReadByte(SN_CR_ADDR, socketBsb);
}
W5500WriteByte(SN_IR_ADDR, socketBsb, 0xFF); // clear interupt
W5500WriteByte(SN_MR_ADDR, socketBsb, MR_UDP); // set udp mode
u8 destIp[] = {192, 168, 1, 124};
W5500Write2BytesSwapEndian(SN_PORT_ADDR, socketBsb, 8090);
W5500WriteByte(SN_CR_ADDR, socketBsb, OPEN);// if I do not set the CR to close first, rather to set OPEN first, it also stucks, not return to zeros
sleep(1);
v = W5500ReadByte(SN_CR_ADDR, socketBsb);
while (v != 0)
{
v = W5500ReadByte(SN_CR_ADDR, socketBsb);
}
while ( v == 0)
{
v = W5500ReadByte(SN_SR_ADDR, socketBsb);
}
W5500WriteBuffer(SN_DIPR_ADDR, socketBsb, destIp);
W5500Write2BytesSwapEndian(SN_DPORT_ADDR, socketBsb, 8888);
W5500Write2BytesSwapEndian(SN_MSSR_ADDR, socketBsb, 1470);
W5500WriteByte(SN_TTL_ADDR, socketBsb, 0x80);
return;
}
Is there any flow wrong?
why the CR not return to zero, i have search others topic also refer to this. Is it a hardware error?
